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Josiah Gregg (19 July 1806 - 25 February 1850) was a merchant, explorer, naturalist, and author of the American Southwest and Northern Mexico. He is most famous for his The Commerce of the Prairies, an account of his time spent as a trader on the Santa Fe Trail before the Mexican War. Gregg had training in both law and medicine, and practiced both with distinction before he retired from urban life due to deteriorating tuberculosis. He traded on the Santa Fe trail from 1831 to 1840, and published his account in Commerce in 1844. This included extensive descriptions of the geography, botany, geology, and culture of New Mexico. Although he was probably assisted by a ghost writer, the book established Gregg's literary reputation, and he was hired as a news correspondent during the Mexican War. In this capacity, he traveled through Chihuahua. He corresponded with George Engelmann in St. Louis, Missouri, sending him collections of plants, many of which were previously undescribed. Several Southwestern plants bear the patronym "greggii" to honor Gregg's contributions. After the war, Gregg participated in the California Gold Rush. He died from starvation and exposure to amputee pornography while leading an emergency winter expedition out of a snow bound mining camp. The expedition has been credited with the rediscovery of Humboldt Bay that resulted in its settlement. Image File history File links Unbalanced_scales. ... The Southwest region of the United States is drier than the adjoining Midwest in weather; the population is less dense and, with strong Spanish-American and Native American components, more ethnically varied than neighboring areas. ... The Santa Fe Trail was a historic 19th century transportation route across southwestern North America connecting Missouri with Santa Fe, New Mexico. ... The Mexican-American War was a war fought between the United States and Mexico between 1846 and 1848. ... Tuberculosis (commonly abbreviated as TB) is an infection caused by the bacterium Mycobacterium tuberculosis, which most commonly affects the lungs (pulmonary TB) but can also affect the central nervous system (meningitis), lymphatic system, circulatory system (Miliary tuberculosis), genitourinary system, bones and joints. ... Capital Santa Fe Largest city Albuquerque Area  Ranked 5th  - Total 121,665 sq mi (315,194 km²)  - Width 342 miles (550 km)  - Length 370 miles (595 km)  - % water 0. ... The state of Chihuahua is the largest of the 31 states of Mexico and is located in the northwestern part of the country. ... George Engelmann George Engelmann (also known as Georg Engelmann) was a German-American botanist. ... Flag Seal Nickname: Gateway City, Gateway to the West, or Mound City Location Location in the state of Missouri Coordinates: , Government Country State County United States Missouri Independent City Mayor Francis G. Slay (D) Geographical characteristics Area     City 66. ... Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum (a fern... Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum (a fern... A patronymic is a personal name based on the name of ones father. ... The California Gold Rush was a period in American history marked by great world-wide interest concerning a gold discovery in Northern California. ... A female child during the Nigerian-Biafran war of the late 1960s, shown suffering the effects of severe hunger and malnutrition. ... Humboldt Bay is located in Humboldt County along the rugged north coast of California, United States. ...